Photos are still not loading. We didn't expect the problem to persist this long. I have been working extra to write posts not relying on images to explain concepts and techniques. Click the October link to see the photo of the board that loaded before this problem began:

Take the board you made, or make one now.

Hold a pushup position with feet on the floor and both hands on the board.

Balance the board and hold your pushup position. Then try pushups. Then try deliberately tilting the board to each direction while you hold your body stable. If you built the chutes with clay strips (or other creative ideas) use your hands to rock the board to direct the marble while holding your body stable in plank (pushup position). Work up to doing push ups that way.